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Finding the Fourth Proportional to 148,989.49, 223,515.03 and 49,155.79

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Solution

The fourth proportional to 148,989.49, 223,515.03 and 49,155.79 is: 73,743.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,989.49 : 223,515.03 = 49,155.79 : x
  2. Step 2: Convert to fraction form
    148,989.49/223,515.03 = 49,155.79/x
  3. Step 3: Cross multiply
    148,989.49x = 223,515.03 × 49,155.79
  4. Step 4: Simplify right side
    148,989.49x = 10,987,057,876.52
  5. Step 5: Solve for x
    x = 10,987,057,876.52/148,989.49
  6. Step 6: Final answer
    x = 73,743.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.